<!DOCTYPE html>
<html lang="en">
<head>
  <meta charset="UTF-8">
  <title>Title</title>
  <link rel="stylesheet" type="text/css" href="css/jquery-ui.min.css"/>
  <script src="js/jquery-2.1.1.min.js"></script>
  <script src="js/jquery-ui.min.js"></script>
</head>
<body>
<!-- jquery-ui下载地址: https://jqueryui.com/download/all/
     autocomplete文档: https://www.runoob.com/jqueryui/api-autocomplete.html
 -->
<input id="auto-complete">
</body>
<script>
  $('#auto-complete').autocomplete({
    source: 'star', // 请求的路径
    delay: 100,   // 输入后请求的延迟
    minLength: 1  // 输入框中内容最少为多个字符，向服务器端发送请求
  })
</script>
</html>